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1994-06-05
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8KB
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177 lines
VLF/LF/MF/HF
Low end High end Allocation
--------- --------- --------------
9 kHz - 14 kHz Radio Navigation (OMEGA)
14 - 90 Various Services
90 - 110 Radiolocation (Loran C)
110 - 160 Military CW Stations
160 - 190 Fixed Service (Power Companies,GWEN) 1750 Meters
FCC allows unlicenced transmissions under 1 watt
190 - 415 Nautical Radionavigation Beacons
415 - 510 Maritime Coastal (CW)
(International calling and distress (CW) - 500kHz)
510 - 535 Aeronautical Radionavigation Beacons (AMTOR,NAVTEX)
525 - 1605 North American AM Broadcast Band
1605 - 1800 Fixed,mobile,radiolocation
1800 - 2000 Amateur 160 Meters
1900 - 2000 Radiolocation
2000 - 2300 Fixed,mobile,maritime
(International calling + distress (USB) - 2182 kHz)
2300 - 2495 Tropical Band
2495 - 2850 Fixed,mobile
2850 - 3155 Aeronautical mobile (USB,CW,RTTY)
3155 - 3400 Fixed,mobile
3200 - 3400 International Broadcast 90 M (excluding N. Amer.)
3500 - 4000 Amateur 80 Meters
3900 - 4000 International Broadcast 75 M
4000 - 4063 Maritime Mobile
4063 - 4438 MARS (?) (CW,voice,RTTY,TOR,SITOR)
4438 - 4650 Various Allocations
4650 - 4750 Aeronautical Mobile
4750 - 5060 International Broadcast 60 M
5060 - 5450 Fixed,Mobile
5450 - 5730 Aeronautical Mobile
5730 - 5950 Fixed,Mobile
5950 - 6200 International Broadcast 49 M
6200 - 6525 Maritime Mobile (CW,voice,RTTY,TOR,SITOR)
6525 - 6765 Nautical Mobile (VOLMET weather)
6765 - 6795 Industrial,Scientific, and Medical (ISM) (CW,RTTY)
6795 - 7000 Fixed Services
7000 - 7300 Amateur 40 Meters
7100 - 7300 International Broadcast 41 M
7300 - 8195 Fixed service
(Out of band broadcast - 7300-7500 kHz)
8195 - 8815 Maritime Mobile (Survival craft - 8364 kHz)
8815 - 9040 Aeronautical
9040 - 9500 Fixed Service
9500 - 9900 International Broadcast 31 M
9900 - 10100 Fixed Service
10100 - 10150 Amateur 30 Meters
10150 - 11175 Fixed Service (primary)
Mobile (secondary)
11175 - 11400 Aeronautical Mobile
11400 - 11650 Fixed Services
(Out of band broadcast - 11500-11650 kHz)
11650 - 12050 International Broadcast 25 M
12050 - 12230 Fixed Services
(Also some out of band broadcasts)
12230 - 13200 Maritime Mobile
13200 - 13360 Aeronautical Mobile
13360 - 13410 Fixed Service,Astronomy
13360 - 13600 Mobile
13600 - 13800 International Broadcast 22 M
13800 - 14000 Fixed Service
14000 - 14350 Amateur 20 Meters
14350 - 14990 Fixed Service
14990 - 15010 Standard Frequency and Time Operations
15005 - 15010 Space Research (Secondary)
15010 - 15100 Off Route Aeronautical Mobile
15100 - 15600 International Broadcast 19 M
15600 - 16360 Fixed Service
16360 - 17410 Maritime Mobile
17410 - 17550 Fixed Service
17550 - 17900 International Broadcast 16 M
17900 - 18030 Aeronautical Mobile
18030 - 18068 Fixed Service
18068 - 18168 Amateur 17 Meters
18168 - 18780 Fixed Service
18780 - 18900 Maritime Mobile
18900 - 19680 Fixed Service
19680 - 19800 Maritime Mobile
19800 - 19900 Fixed Service
19900 - 20010 Standard Frequency and Time
19900 - 19950 Space Research (Secondary)
20010 - 21000 Fixed Service
21000 - 21450 Amateur 15 Meters
21450 - 21850 International Broadcast 13 M
21850 - 21870 Fixed Service
21870 - 21924 Aeronautical Fixed Service
21924 - 22000 Aeronautical Mobile
22000 - 22855 Maritime Mobile
22855 - 23200 Fixed Service
23000 - 23200 Mobile Services (Secondary)
23200 - 23350 Off Route Aeronautical Mobile
23350 - 24890 Fixed Service
23350 - 24000 Mobile Services
24000 - 24890 Land Mobile,Fixed Service
24890 - 24990 Amateur 12 Meters
24990 - 25010 Standard Frequency and Time
25010 - 25070 Fixed Service
25070 - 25210 Maritime Mobile
25210 - 25550 Fixed, Mobile
25210 - 25670 Astronomy
25670 - 26100 International Broadcast 11 M
26100 - 26175 Maritime Mobile
26174 - 28000 Fixed Service
26174 - 28000 Mobile Services
26960 - 27410 Citizens Band
27500 - 28000 Meteorological
28000 - 29700 Amateur 10 Meters
29700 - 30005 Fixed, Mobile
HF Terms
--------
CW - Morse Code (Continuous Wave), a transmission mode consisting
of long and short tones known as dits and dahs (or dots and
dashes). This mode takes up very little spectrum space and
provides for extremely long distance transmissions due to
a number of factors such as the ability of the transceiver
to focus all the energy on a very narrow transmission.
USB - Upper Sideband, a variation of the single sideband voice mode
(Single sideband sounds very muffled if if receiver does not
support single sideband mode) Single sideband takes up half
the space of a normal AM transmission and also provides for
much longer distance communications than normal double
sideband AM)
RTTY - Radioteletype, text communication between teleprinters or
computers
MARS - Military Affiliate Radio Station, radio stations aiding ship
to shore communications, especially between sailors and their
families. (NOTE: A valid MARS licence is required to operate
on MARS frequencies.)
Amateur Radio - Radio Stations broadcasting *noncommercial* information.
Amatuer Radio Operators have many Amateur Radio Bands
spread throughout the spectrum. Amateurs are a vital
source of communications in emergencies but Amateur
Radio is an exciting hobby even when there is no emergencies.
Amateurs have many different authorized communications
modes such as CW,USB,LSB,AM,FM,RTTY,AMTOR,Packet (computer
to computer error free communications), SSTV (slow scan
television), FSTV (fast scan television like normal TV),
and more. Amateurs have built amateur sattelites (for
extremely long distance communications even on VHF and UHF)
as well as repeaters to increase the communications range
of their handheld amateur radios. (NOTE: A valid amateur
radio licence is required to operate on amateur bands.)
For more information about amateur radio and licensing contact the ARRL :
American Radio Relay League
225 Main Street
Newington, CT 06111
USA
The information contained in this file was compiled from numerous
sources. For an more detailed look at the HF spectrum, I suggest
the ARRL Operating Manual, Fourth Edition, Chapter 1.
Listing compiled February 4, 1992 by:
Scott McCurry KD6FJC
204 Downing Lane
Santa Maria, CA 93455-2036
USA